There are several potential reasons why a scanner may not be recognized by a Windows system.
The most common cause is a driver issue; the driver for the scanner may not be installed correctly, or the driver may be out of date or incompatible with the operating system. To resolve these issues, check to see if there are any new or updated drivers available on the manufacturer’s website and install them. If the manufacturer no longer provides driver updates for the scanner, you may need to purchase a newer model.
In some cases, a scanner may not be detected due to a hardware problem. This could be due to a faulty cable connection, a power problem, or a malfunctioning USB port. Check to make sure that all cables are firmly connected and that the power is turned on. Additionally, try connecting the scanner to a different USB port, or try using a different cable.
If the scanner is not detected in the Device Manager, then it may be disabled. To ensure that the scanner is enabled, open the Device Manager, select the scanner from the list, and set its status to “Enabled”.
Another potential cause of detection problems is a conflict between multiple scanners or similar device types. To resolve this issue, make sure that only one scanner is connected to the system at a time. Additionally, try disconnecting all USB devices from the system to ensure that there is no conflict between peripherals.
Finally, if none of the above solutions work, try restarting the computer or reinstalling the operating system. This will reset the system and may help detect the scanner properly.